Hidden pain in the right side of the abdomen may be related to appendicitis, right tubal stone, ectopic pregnancy, intestinal torsion, mesenteric lymphadenitis, tubalitis and other diseases, it is recommended to consult the doctor in time to clarify the cause of the disease and then treat it. 1. Appendicitis: Inflammatory lesions in the appendix due to blockage of the appendix lumen or secondary bacterial infection. Clinical symptoms of right-sided abdominal pain, accompanied by nausea, vomiting and so on. 2. Right fallopian tube stones: caused by kidney stones descending into the right fallopian tube, clinically there will be pain in the right side of the abdomen, hematuria, urinary frequency, urinary urgency and other uncomfortable symptoms. 3. Ectopic pregnancy: due to the fertilized egg in the uterus body cavity outside the site of the bed and development, resulting in the occurrence of unexpected pregnancy symptoms. Clinical symptoms of right-sided abdominal pain, accompanied by abnormal vaginal bleeding. 4. Intestinal torsion: usually due to post-surgical adhesion, full meals, constipation and other factors, causing the intestinal tube and its mesentery to torsion, resulting in intestinal obstruction symptoms. Usually there will be hidden pain in the right lower abdomen, abdominal distension, nausea and other uncomfortable symptoms, and need to be operated under the guidance of the doctor. 5. Mesenteric lymphadenitis: mainly due to viral, bacterial, parasitic infections, causing inflammatory lesions in the mesenteric lymph nodes. Usually there will be fever, vague pain in the right lower abdomen, enlarged lymph nodes, nausea, vomiting and other discomforts. 6. Tubulitis: mainly due to the cervix and vagina bacteria upstream to the fallopian tube mucosa, thus causing inflammatory lesions. Usually, there will be discomfort such as elevated body temperature, headache, right lower abdominal pain and so on. Hidden pain in the right side of the abdomen has a complex etiology, and it is necessary to go to the hospital in time to check and clarify the cause before treatment.